baber/WOPTO huggingface dataset:
Patent GB-434480-A (GB)
Title: Improvements in or relating to automatically variable power transmission gearing especially for motor vehicles
IPC: F16H61/02
Filed: 1933-12-29
Abstract: 434,480. Variable - speed gearing. HOBBS, H. F., 58, Lillington Road, Leaming- ton Spa. Dec. 29, 1933, No. 36599. [Class 80 (ii)] Relates to automatically - variable gearing suitable for vehicles of a kind comprising eccentric planetary weights carried by a driving member and geared to a driven shaft which is prevented from rotating except in one desired direction. Specification 358,732 describes gearing of this kind, the planetary weights being shown at 12 in Fig. 1 of that specification, and the driven shaft at 14, there being reversible detent rollers 26 between arcs on a fixed member 20 and a one-way drum 40 on the shaft 14. The best or most suitable pressures of the springs of the detent rollers increase with the load, that is with the difference between the speeds of the driven and driving shafts. The spring pressures are unnecessary on direct drive and must be very pronounced on lowest speed. The invention provides means for varying the spring pressures on the detent rollers proportional to the difference in speeds between driven and driving shafts. A pump F, Fig. 1, driven by the driving-shaft is opposed to a pump J driven by the load shaft so that oil pressure in a duct d<4> is proportional to the difference in speeds. In the neutral position of the gearing shown, this oil escapes round a groove d in a piston D and out at a duct d<6>, Fig. 2. The piston rod B<2> of this piston is jointed to a lug A<6>, Fig. 1, of a cage A<5> which carries springs A<4> acting on the detent rollers A<2> which operate between arcs on a fixed member A and a one-way drum A'. For forward driving, a manual wheel B<5> through a lost-motion rack sleeve B<4> depresses the piston D until oil from the duct d<4> enters a port d<1> in the piston flange and escapes by a port d<7>, Fig. 2. While over the piston, this oil exerts the required differential pressure which is communicated to the detent springs A<4>. For reversed driving, the piston D is raised and the differential pressure is exerted underneath it and in a reversed direction on the cage A<5>. In Fig. 3 (not shown), is an arrangement in which the cage A<5> is pulled in opposite directions through springs by the accelerator and by a governor on the load shaft. Specifications 353,750, 434,353, and 435,988 also are referred to.
Patent GB-654636-A (GB)
Title: Diaphragm pump for thawing hoar-frost on aircraft propellers
IPC: F04B43/02
Filed: 1946-12-12
Abstract: 654,636. Diaphragm pumps. ETABLISSEMENTS A. GUIOT, SOC. ANON. Dec. 12, 1946, No. 36634. Convention date, Dec. 19, 1945. [Class 102(i)] In a diaphragm pump, the pumping diaphragm g is actuated by a red f engaging an axially acting cam and suction and delivery valves o, r respectively are provided. An auxially suction valve k is actuated by a spring-loaded diaphragm h and the pressure of the liquid passing the delivery valve r acts through passage y to raise the diaphragm h and opens the valve k during the discharge stroke of the diaphragm g to admit liquid to the chamber n that is subsequently drawn through valve o in the next suction stroke of the pump. The delivery passage p is connected by a passage x to a spring-loaded diaphragm v carrying a valve so that when the delivery pressure exceeds a predetermined value, the valve allows byepass to the chamber n. The pump is used for supplying liquid to de-ice aircraft propellers.
Patent GB-790336-A (GB)
Title: Improved protective systems for alternating current machines
IPC: H02H3/10
Filed: 1955-12-22
Abstract: 790,336. Protective cut-out arrangements. GENERAL ELECTRIC CO. Dec. 22, 1955 [Dec. 29, 1954], No. 36731/55. Class 38 (5). A protective arrangement for a polyphase A.C. machine comprises transformers 7, 14, 21 having primary windings connected in series with the windings 2 ... 4 of the machine and a bimetal member 39 having heaters 34 ... 36 supplied from the secondary windings of the transformers, the bimetal member being in close positional relationship to the windings of the machine so as to respond to the total heating effect of the heaters and the windings. When sufficiently heated by overload currents or heating due to " single-phasing," the bimetal member 39 opens contacts 40 to de-energize the coil 42 of a contactor to disconnect the machine. In a modified arrangement, Fig. 2 (not shown), the heater current is arranged to flow through the bimetal member and provide additional heating giving a quicker response under overload conditions.
Patent GB-367537-A (GB)
Abstract: 367,537. Hair - waving appliances CALVETE, I. B., 59, North Street, Clapham, London. Jan. 30, 1931, No. 3047. [Class 131.] . In an electric heater for use in hair-waving processes of the kind comprising an inner tube a upon which is wound the heating resistance b, an outer sleeve f and a base member c, the base member is of annular formation being formed with a ring h that surrounds a rearwardlyextending tubular portion c<1> that is of less diameter than a forwardly-extending tubular portion d, thereby forming an abutment e.for the rear end of the inner tube a, the front end of which is flush with the front end of the outer sleeve f. The sleeve f :is formed with a ring f<1> which fits over the tube d and is secured by screws g.
Patent GB-754529-A (GB)
Title: Improvements in or relating to disk brakes
IPC: F16D55/46
Filed: 1954-12-20
Abstract: 754,529. Disc brakes. BENDIX AVIATION CORPORATION. Dec. 20, 1954 [Jan. 13, 1954], No. 36771/54. Class 103 (1). In a disc brake of the type in which the brake actuation is initiated by a circumferential movement of the pressure plate 36 so that the frictional torque on the plate caused through the actuation of a plurality of camming devices 32, a self-energizing axial movement of the plate 36 tending to apply the brake more strongly, the applying means, such as a fluid-pressure cylinder 40, is disposed so as to provide a composite axial and circumferential movement of the pressure plate. As shown in Fig. 3, this action is obtained by arranging the cylinder 40 at an angle to the disc. As shown in Figs. 1 and 4, the rotatable disc 24 has circumferentially spaced friction pads 26, cooling air being driven centrifugally through the space therebetween. Fig. 7 shows a mechanical actuatorfor a hand brake also giving a composite axial and circumferential movement to the pressure-plate. In Fig. 8, an actuator adapted for operation by either mechanical or fluid pressure means applies a thrust to the pressure plate 36b through a hardened insert 90 mounted on anti-friction bearings 92, the contact point 95 between the plate 36b and insert 90 being offset from the axis of rotation of the insert.
Patent GB-619618-A (GB)
Title: Improvements in or relating to resilient joints or mountings
IPC: F16F1/393
Filed: 1946-12-16
Abstract: 619,618. Resilient mountings. ASSOCIATED EQUIPMENT CO., Ltd., and RACKHAM, G. J. Dec. 16, 1946, No. 37047. [Class 108 (iii)] In a resilient joint or mounting of the kind in which natural or synthetic rubber or other similar resilient material is incorporated between relatively-movable parts of the mounting, and in which provision is made for positive limitation of movement between the parts, a pin is supported at one end only on one of the parts, the projecting portion of the pin being encircled by the resilient material supported in a ring carried by the other part, and the positive limitation of movement is effected only at a point adjacent to the supporting point of the pin. In the construction shown in Fig. 1, a tube a is secured to a housing b in which a rubber ring f is held frictionally by compression of a nut and conical-headed bolt g, upon a conical sleeve c. On the occurrence of excessive bending load between the supported and supporting parts a, d respectively, a clearance h is taken up, and metal to metal contact occurs between the flange of the housing b and the sleeve c, thus substantially converting the stress from bending to shear.
Patent GB-787031-A (GB)
Title: Improvements in private automatic exchanges
Inventor: JOHNSON BENJAMIN BERTIE
IPC: H04Q3/00
Filed: 1954-12-22
Abstract: 787,031. Automatic exchange systems. TELEPHONE MANUFACTURING CO., Ltd. Jan. 4, 1956 [Dec. 22, 1954], No. 37087/54. Class 40 (4). In a self-complete private automatic exchange each outgoing trunk from a control circuit terminates in a selective electro-mechanical bridge connector with two levels such as is described in Specifications 781,851 and 781,852, one level giving access to the incoming trunks of the self-complete private automatic exchange and the other level giving access to the incoming trunks of another similar exchange. The system is designed for ready expansion without disturbance of existing equipment and makes use of line-growth units LGU and trafficgrowth units TGU as described in the earlier Specifications. When a call is initiated it is extended over a traffic growth unit such as TGU1 to a feed bridge and control circuit such as CON1. A register such as REG1 is taken into use to record the dialled digits and complete a marking circuit. For calls within the exchange one of the outgoing trunks in group A is selected and the connection is completed in the manner described in the earlier Specifications. For calls to exchange B one of switches SW11-SW15 is operated whereby the register selects one of outgoing trunks B. For calls to further exchanges C or D one of switches SW21- SW25 is operated so that the register selects one of outgoing trunks C or D, Fig. 3, in a further set of connections BMX1-BMX5, similar to the connections BMT1-BMT5. Trunking diagrams are shown in Figs. 2 and 4.
Patent GB-370922-A (GB)
Title: An anti-dazzle device for lamps
IPC: F21V7/09
Filed: 1930-12-10
Abstract: 370,922. Antidazzle device for vehicle &c. lamps. MUDDLE, A. A., Avon Lodge, Coast Road, Pevensey Bay, Sussex. Dec. 10, 1930, No. 37194. [Class 75 (iv).] Lantern screens.-In an antidazzle device for vehicle and like lamps in which a screen is arranged to cut off direct rays from the source of light b to portions of the reflector a, one part f of the screen subtends a sector of the reflector of from about 30 to 50‹ at one side of its vertical axial plane whilst a second part g subtends a diametrically opposite sector of from about 15 to 30‹. The screen may be made of polished sheet metal with the base m of the part f blackened or otherwise rendered non-reflective, both parts f, g may be bent outwardly about a mid-rib, and the part g may be extended to project in front of the source of light. The central portion h of the screen is apertured to receive the lamp cap which carries a positioning spring, the tail of which passes through a hole in the portion h and engages a depression in the reflector a to insure the correct angular positioning of the screen with respect to the source of light. The Provisional Specification refers to the screen wholly surrounding the source of light, its being made of wire gauze, and its being operated at will.
Patent GB-1201314-A (GB)
Title: Self-adjusting disc brake
Inventor: ROMANINI ROMEO
IPC: F16D65/54
Filed: 1967-08-14
Abstract: 1,201,314. Disc brakes. LANCIA & C. FABBRICA AUTOMOBILI-TORINO S.p.A. 14 Aug., 1967, No. 37298/67. Heading F2E. In a self-adjusting disc brake having a brake pad actuating piston 26 movable within a fixed cylinder 3 and a resilient means 10 urging the piston 6 away from the disc 1 into engagement with a surface of an annular member 8 to maintain, in the inoperative condition of the brake, a predetermined clearance d between an abutment surface 9 of the piston and a surface of the annular member 8 facing away from the brake disc, a split ring 14 in frictional engagement with the cylinder 3 is moved in the cylinder towards the brake disc by the annular member 8 when the piston 6 is moved on operation of the brakes through more than the predetermined distance d so that on release of the brake the pad is spaced from the disc by the clearance. When the brake is operated the piston 6 is moved by hydraulic fluid P in chamber 4o until the end 9 of the piston abuts the side of the annular member 8. If any wear has occurred, the piston moves the member 8 and split ring 14 towards the disc. Frictional contact between the ring 14 and the internal surface 4b of the cylinder 3 maintains the ring in position so that on release of the brake the pad is returned by spring 10 so that the side of part 66 abuts the annular member 8 at 6f to give the pad a new position closer to the disc. The split ring 14 (Figs. 3-5, not shown) has a groove containing a seal 15. The piston 6 may be modified (Fig. 2, not shown), to have an additional chamber (4c) and auxiliary piston (6a<SP>1</SP>) provided with a piston ring (16) so that two independent hydraulic systems P (and P<SP>1</SP>) control the brake.
Patent GB-1451245-A (GB)
Title: Loom dobby mechanism
IPC: D03C1/14
Filed: 1974-08-27
Abstract: 1451245 Looms ROCKWELL INTERNATIONAL CORP 27 Aug 1974 [23 Oct 1973] 37401/74 Heading D1E A shuttleless loom with separate coupled dobbies for shedding and weft selection has means to disconnect the common driving means in order to operate both dobbies simultaneously by hand. A dobby drive shaft 26 has a freely rotatable sprocket 31 connected by a dog clutch to an axially slidable gear 40 splined to the shaft 26. The sprocket 31 is driven from the loom and when coupled to the gear 40 (Fig. 2) drives the shaft 26 and thus the shedding dobby by way of a sprocket 31 and the weft selection dobby by way of a sprocket 33. To disconnect the loom drive a hand wheel 51 is moved to axially move the gear 40 to disengage the dog clutch and to engage the gear 40 with a gear 56 rotated by the handwheel 51. A baulk plate 45 is provided so that the drive may be disconnected only at a desired position.
Patent GB-992631-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: DRAKEFORD GEORGE EDWARD
IPC: B60C9/09
Filed: 1960-11-01
Abstract: 992,631. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. Oct. 24, 1961 [Nov. 1, 1960], No. 37423/60. Heading B7C. A pneumatic tyre having a rigid tread reinforcement 8 of two cross-laid parallel cord plies 10, 11 each with a cord angle not exceeding 30 degrees to the mid-circumferential plane, and at least one bead to bead carcase reinforcing ply 2 or 3 of parallel cords disposed at an angle of at least 45 degrees to the said plane, is provided in each side wall with a half ply 13 which extends from the associated bead to the adjacent edge of the tread reinforcement and comprises a textile or steel cord 14 wound spirally in parallel circumferential side-by-side convolutions 15. The half ply is pre-formed on to a sidewall covering 27 disposed on a profiled surface 25 of an annular former 24 which is supported on a rotatable horizontal table 26 to facilitate spiral winding of the cord 14 by a guide roller 31, a bead bracing strip 19 of parallel 30 degrees angle cords, and a bead lining rubber strip 29 being also laid on the former prior to winding of the cord 14. The former is then disposed coaxially with a flat band carcase on an expansible drum, and the carcase expanded radially to toroidal shape whilst the former is moved axially to position the pre-formed sidewall against the shaped carcase. As shown, the carcase comprises two cross-laid parallel cord bead to bead plies 2, 3 wrapped around a bead core wire 7. In an alternative arrangement, Fig. 4, the bead wire 7 is replaced by an annular disc formed by a spirally wound steel cord 36 and the edge of the single bead to bead radial cord ply 37 is sandwiched between the disc and the spirally wound half ply 38. Specification 854,971 is referred to.
Patent GB-759465-A (GB)
Title: Improvements in or relating to production of water colour pictures
IPC: G09B11/10
Filed: 1954-12-30
Abstract: 759,465. Teaching painting. BROMOMINT CO. Dec. 30, 1954 [April 30, 1954]. No. 37713/54..Class 11 Apparatus for producing water-colour pictures comprises a master speciman A having outline areas delineated thereon with indicia in the areas indicating the shades of colour to be applied to the same area of a copy speciman indentical with the master speciman, but with the indicia omitted and plurality of colour applying instruments provided in colour indicia corresponding to those on the master sheet. Where the indicia indicates that two colours are'to be applied sequentially the first colour is allowed to dry before the second is applied. Specification 757,467 [Group XXIII], is referred to.
Patent GB-1236395-A (GB)
Title: Lubrication of bearings of reciprocating engines
Inventor: ALCOCK JOHN FORSTER
IPC: F16J1/08
Filed: 1967-08-16
Abstract: 1,236,395. Lubricating. RICARDO & CO. ENGS. (1927) Ltd. 15 Aug., 1968 [16 Aug., 19671, No. 37812/67. Heading F2A. An internal combustion engine has a piston or piston-rod pivotally connected by a small end bearing to an angularly oscillating connecting rod, and has a lubricating pump actuated by the reciprocating movement of the piston or pistonrod to deliver lubricant to the bearing during a selected portion of the reciprocating cycle. In an embodiment a pump unit is secured to a crosshead block B, Fig. 1, and comprises a casing H having a bore with a plunger J therein, the latter having an annular recess N which communicates with a working chamber J3 of the pump, via a transverse passage J1 and an axial passage J2 in the plunger. The plunger J is connected by a link K to a lug L of a pipe E2 which is joined to a fixed part of the mechanism by means of a joint F2, a pipe E1 and a joint F1. During its suction-stroke the plunger J uncovers an inlet port N<SP>1</SP> and lubricant is received in the working chamber J3, via the passages J1, J2. During its delivery-stroke the plunger J returns lubricant through the inlet port N<SP>1</SP> until the latter is covered by the plunger. The lubricant is then passed through a deliveryport J4, a non-return valve P, a delivery chamber P1 and passages m, m<SP>1</SP>, m<SP>2</SP>to grooves N<SP>2</SP> in small-end bearings C2, Fig. 3. The delivery of lubricant to the bearings ceases when the annular recess N in the plunger J again communicates with the inlet port N<SP>1</SP>. In another embodiment a block assembly Q, Fig. 4, carries a pump block A having a plunger S therein. The latter, having a roller V, is spring-urged into contact with a linear cam W so that, when the block assembly Q is reciprocated by means of a connecting-rod Z<SP>i</SP>, the plunger S is actuated. The pump block A receives lubricant through a telescopic pipe U<SP>1</SP>, U and an inlet passage D, and delivers lubricant through passages E, E in order to lubricate a small-end bearing T. A big-end bearing (not shown) is lubricated via a longitudinally extending passage Y in the connecting rod Z<SP>1</SP>.
Patent GB-327104-A (GB)
Title: Improvements in or relating to presses for trousers, tennis rackets or other articles
IPC: A47G25/72
Filed: 1928-12-21
Abstract: 327,104. Dale Forty Engineering Co., Ltd., and Parr, J. R. Dec. 21, 1928. Trouser presses.-Trouser, tennis racket, and other like presses are made with the press operating devices capable of being slidably moved into and out of operative position. As shown, each thumb screw 4 is mounted in screw threaded sleeves 1 having an extension plate 2 capable of sliding in a sheath member 6 attached to the bottom board. A stop on the plate 2 slide's in a groove in the sheath member and limits the sliding movement. In a modification the screws 4 have their ends fixed in the plates 2 and the wings 5 are arranged to form winged nuts screwing down on the screws.
Patent GB-1478403-A (GB)
Title: Loading magnetic transducer heads
IPC: G11B21/04
Filed: 1974-08-29
Abstract: 1478403 Supporting transducer heads XEROX CORP 29 Aug 1974 [31 Aug 1973] 37845/74 Heading G5R A resiliently-mounted magnetic head is moved first over and then into engagement with a magnetic recording medium by means of a moving carriage and a camming surface connected thereto by a mechanical linkage which causes the camming surface to move first with the carriage and then in the opposite direction. As shown, a carriage 20 carries resilient T- shaped torsion members 19, each supporting two magnetic heads (15), Figs. 7 and 8 (not shown), which in the retracted position are held away from their respective record discs 16 by the engagement of the arms of the support 19 with cams 33 mounted on a slidable tower 34. The carriage 20, driven by a linear actuator 28, moves the heads inwards over the disc surfaces and, through a rod 47, pushes a sliding block 45 in which a cam groove 48 engages a roller 61 on one end of an L-shaped link 56, pivoted at 57, which is thereby driven so that a second roller 62 on its other end pushes the cam tower 34 first inwards with the heads and then outwards, freeing the heads to engage the discs and continue moving inwards. At the innermost position the block 45 is held by a solenoid-operated latch 67, 71, and the actuator 38 then withdraws the heads to a selected position on the record discs. In the event of a power failure, the latch 67, 71 opens and a spring 66 retracts the block 45 and hence the cam tower 34 and the head carriage 20.
Patent GB-946278-A (GB)
Title: Improvements in and relating to rake tooth mountings
IPC: A01D80/00
Filed: 1962-10-08
Abstract: 946,278. Side delivery rakes. INTERNATIONAL HARVESTER CO Oct. 8, 1962 [Nov. 8, 1961], No. 37964/62. Heading A1F. A tine 17 is mounted on a tine bar 2 of a side delivery rake by means of a block 16 of a rubber-like material which has grooves 22 and 23 cut in it as shown whereby the tine resists movement in a downwardly rearward direction but yields easily in an upwardly forward direction. The tine may be of U-shape with the bight 36 set in the block 16 which also incorporates a securing bolt 6 and a metal backing plate 12.